"Vienna, Sept. 29-- The police of Pesth, Hungary, believe that the alleged lunatic, Szemerdy [sic], who committed suicide in his cell at Pressburg, after being arrested for a number of atrocious murders, was known as Jack the Ripper in London. They say that he was in London at the time of each and every murder attributed to Jack the Ripper was [sic] committed."

"Vienna, Sept. 29-- The police of Pesth, Hungary, believe that the alleged lunatic, Szemerdy [sic], who committed suicide in his cell at Pressburg, after being arrested for a number of atrocious murders, was known as Jack the Ripper in London. They say that he was in London at the time of each and every murder attributed to Jack the Ripper was [sic] committed."

Why does Boulder Colorado of all places have so much Jack the Ripper news?

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The early bird might get the worm, but the second mouse gets the cheese.

Why does Boulder Colorado of all places have so much Jack the Ripper news?

LOL, Errata! I'm looking in the Colorado Historic Newspapers Database. So far Aspen and Boulder have produced snippets I've posted on Casebook in various threads, but, trust me-- it is difficult finding a "Jack the Ripper" phrase that actually relates to the London cases!

People all over the USA seemed to fancy themselves either Jack, or his "pal", and write threatening letters to all and sundry authorities. Any murder with a knife was called a "Jack the Ripper" murder. In some newspapers, the editors just put in the phrase at random, apparently expecting it to get more attention.
He (or the idea of him) was far more influential than I'd thought at first.